| Influences of sub-micrometer Ta and Co dopants on microstructure and properties of tungsten heavy alloys |
| |
| 作者姓名： | 谭兴龙 冷邦义 邱绍宇 李强 何文艳 王传海 雷代富 |
| |
| 作者单位： | [1]ChinaAcademyofEngineeringPhysics,P.O.Box919-71,Mianyang621907,China [2]NuclearPowerInstituteofChina,P.O.Box436-4,Chengdu610041,China |
| |
| 摘 要： | Tungsten heavy alloys are aggregates of particles of tungsten bonded with Ni/Fe or Ni/Cu via liquidphase sintering. The sub-micrometer Ta Co powder was added to this aggregate to strengthen the bonding phase. It is found that the main fracture pattern of the alloys is cleavage of tungsten grains and ductile rupture of bond phase,leading to improved tensile strength and elongation. Dopant Ta can act as grain size inhibitor in tungsten heavy alloys.
|
| 关 键 词： | 钨合金 高比重合金 钽 钴 合金化 显微结构 性能 粉末冶金 |
Influences of sub-micrometer Ta and Co dopants on microstructure and properties of tungsten heavy alloys |
| |
| TAN Xing-long.Influences of sub-micrometer Ta and Co dopants on microstructure and properties of tungsten heavy alloys[J].Transactions of Nonferrous Metals Society of China,2004,14(4):747-750. |
| |
| Authors: | TAN Xing-long |
| |
| Abstract: | Tungsten heavy alloys are aggregates of particles of tungsten bonded with Ni/Fe or Ni/Cu via liquidphase sintering. The sub-micrometer Ta Co powder was added to this aggregate to strengthen the bonding phase. It is found that the main fracture pattern of the alloys is cleavage of tungsten grains and ductile rupture of bond phase,leading to improved tensile strength and elongation. Dopant Ta can act as grain size inhibitor in tungsten heavy alloys. |
| |
| Keywords: | tungsten heavy alloys sub-micrometer Co powder Ta powder cleavage fracture |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
